[HenryBemis]

I remember playing BB on PC back in the early 90s.. When I had 45-50mins to spare I would rock it.. If memory serves well, if you reached lvl 20 without losing a life you would open up the bonus levels.

[CaptainHardcore]

Correct. The secret room would appear at levels 20, 30, and 40 if you didn’t lose a life.

I watched a video last night about how the special items are calculated. Blew my mind- I thought it was random.

https://youtu.be/8ufe9swEtzg